I decided to look at free web based image editors and think Pixlr is one of the better ones out there. It is not as robust as Photoshop but provides most essentials for photo-editing. It also provides function for image design. The interface seems to be modeled on Photoshop with easy to find tool set, layer palate and drop-down menus featuring image adjustment features, filters and layering options. If you are familiar with Photoshop – you will make good use of other basics such as crop tool, blur, dodge, burn, eye-dropper, smudge – these are all available from Pixlr Editor. It is very easy to create a new image, upload an image (easily found my image folder) or grab an image from the web.
In addition, try Pixlr Express –a useful tool for simple, one-click adjustments.